Driver Installation / Configuration
Driver Installation

Driver installation was a snap.  The included CD has a no-frills 32 and 64 bit driver, as well as a control panel application.

Configuration

The control panel was quite useful, containing all sorts of features, many of which I have never seen on *any* PCI device short of a bus analyzer.

DDRdrive hits the ground running - PCI-E RAM-based SSD - Storage  1

A plethora of board-level tests are available.

DDRdrive hits the ground running - PCI-E RAM-based SSD - Storage  2

The PCI status screen shows all errors since boot.  The TX error count is expected, and occurs only during POST.

DDRdrive hits the ground running - PCI-E RAM-based SSD - Storage  3

Backups and restorations to/from the on-board SLC flash occur in ~60 seconds and can be performed with the drive active / in use.

DDRdrive hits the ground running - PCI-E RAM-based SSD - Storage  4

!!!

That last one just punched me right in the face.  309k IOPS!  To put this in perspective, see the following short list:
  • Intel X25: ~60k
  • Fusion-io ioDrive: ~100k
  • Fusion-io ioDrive duo: ~200k
A single lane of PCI Express tops out at less than SATA-2 speeds, and *way* less than the 4 or 8 lanes used by the ioDrive or ioDrive DUO.  How could this be possible?!?!  Well, this was the output of a control panel designed specifically to interface with the DDRdrive, so we must take these results with a grain of salt until they can be verified by other means.  The only true way to see how things stack up is to head to the benches…

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